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公开(公告)号：US10548085B2
公开(公告)日：2020-01-28
申请号：US15348308
申请日：2016-11-10
Applicant: Landis+Gyr Innovations, Inc.
Inventor： James Patrick Hanley , Vidya Prakash , Christopher Scott Hett
Abstract: Systems and methods optimize broadcast transmissions from a parent device operating on a time-slotted channel hopping (TSCH) network to one or more low-energy endpoint devices connected and synchronized to the communications of the TSCH parent device. As part of a Receiver Initiated Transmit (RIT) communication process, the TSCH parent device receives a check-in communication from a connected low-energy endpoint device during a wake state of a wake/sleep cycle of the low-energy endpoint device. In response to the check-in message, the TSCH parent device transmits an acknowledgment message identifying a broadcast timeslot during which the TSCH parent device will broadcast stored broadcast messages. During the identified timeslot, the TSCH parent device broadcasts stored broadcast messages to any connected low-energy endpoint devices that are tuned in to the corresponding frequency channel according to the TSCH protocol.
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公开(公告)号：US20220263538A1
公开(公告)日：2022-08-18
申请号：US17740597
申请日：2022-05-10
Applicant: Landis+Gyr Innovations, Inc.
Inventor： James Patrick Hanley , Christopher Scott Hett
IPC: H04B1/7143 , H04L27/26 , H04B1/7075 , H04W84/20
Abstract: A multi-radio border router for synchronizing communications of multiple border router radios is provided. For example, the border router includes a border router component connected to each of the plurality of border router radios. The border router component configured for selecting one of the plurality of border router radios as a master radio and assigning channel offset parameters for each of the plurality of border router radios. The master radio is configured for broadcasting synchronization beacons based on which the non-master radios synchronize their respective clocks with that of the master radio. After the synchronization, each of the border router radios communicates with endpoints associated therewith according to a channel hopping pattern modified by applying a channel offset determined based on the channel offset parameters assigned to the respective radio.
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公开(公告)号：US10530638B2
公开(公告)日：2020-01-07
申请号：US15974499
申请日：2018-05-08
Applicant: LANDIS+GYR INNOVATIONS, INC.
Inventor： James Patrick Hanley , Lawrence Harris , Christopher Scott Hett
IPC: H04W24/04 , H04L12/24 , H04L12/707 , H04L12/26 , H04L12/703 , H04W84/20
Abstract: Systems and methods for managing nodes in mesh networks are provided. A critical node may determine a status of a backhaul connection prior to joining a PAN. A critical path may be created and maintained that includes the critical node and any intervening nodes between the critical node and the root. A critical node may switch PANs when a backhaul connection becomes unavailable. The switch may be facilitated by a node on the critical path other than the critical node. A node may switch PANs and coordinate the switch with its child nodes.
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4.发明申请公开(公告)号：US20180132182A1
公开(公告)日：2018-05-10
申请号：US15348308
申请日：2016-11-10
Applicant: Landis+Gyr Innovations, Inc.
Inventor： James Patrick Hanley , Vidya Prakash , Christopher Scott Hett
CPC classification number: H04W52/0235 , H04W52/0216 , H04W72/005 , H04W72/0446 , Y02D70/00 , Y02D70/144 , Y02D70/22
Abstract: Systems and methods optimize broadcast transmissions from a parent device operating on a time-slotted channel hopping (TSCH) network to one or more low-energy endpoint devices connected and synchronized to the communications of the TSCH parent device. As part of a Receiver Initiated Transmit (RIT) communication process, the TSCH parent device receives a check-in communication from a connected low-energy endpoint device during a wake state of a wake/sleep cycle of the low-energy endpoint device. In response to the check-in message, the TSCH parent device transmits an acknowledgment message identifying a broadcast timeslot during which the TSCH parent device will broadcast stored broadcast messages. During the identified timeslot, the TSCH parent device broadcasts stored broadcast messages to any connected low-energy endpoint devices that are tuned in to the corresponding frequency channel according to the TSCH protocol.
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公开(公告)号：US11706063B2
公开(公告)日：2023-07-18
申请号：US17157123
申请日：2021-01-25
Applicant: Landis+Gyr Innovations, Inc.
CPC classification number: H04L27/0012 , H04W84/18
Abstract: A system for switching between different communication modes by network nodes according to a time-division schedule to transmit and receive data packets is provided. For example, a transmitting node is configured to determine a scheduled communication mode of an upcoming time division according to a time-division schedule, and transmit a data packet in that time division when the scheduled communication mode matches a selected communication mode supported by both the transmitting node and a receiving node. The receiving node operates in a scheduled communication mode specified for a current time division by the time-division schedule and determines whether a header of the data packet is detected in the current time division. If not, the receiving node switches to a second scheduled communication mode specified for the subsequent time division by the time-division schedule to detect the header of the data packet in a subsequent time division.
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Patent Agency Ranking
公开(公告)号：US11637584B2
公开(公告)日：2023-04-25
申请号：US17740597
申请日：2022-05-10
Applicant: Landis+Gyr Innovations, Inc.
Inventor： James Patrick Hanley , Christopher Scott Hett
IPC: H04B1/71 , H04B1/7143 , H04L27/26 , H04B1/7075 , H04W84/20
Abstract: A multi-radio border router for synchronizing communications of multiple border router radios is provided. For example, the border router includes a border router component connected to each of the plurality of border router radios. The border router component configured for selecting one of the plurality of border router radios as a master radio and assigning channel offset parameters for each of the plurality of border router radios. The master radio is configured for broadcasting synchronization beacons based on which the non-master radios synchronize their respective clocks with that of the master radio. After the synchronization, each of the border router radios communicates with endpoints associated therewith according to a channel hopping pattern modified by applying a channel offset determined based on the channel offset parameters assigned to the respective radio.
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公开(公告)号：US10772095B1
公开(公告)日：2020-09-08
申请号：US16359490
申请日：2019-03-20
Applicant: Landis+Gyr Innovations, Inc.
IPC: G05B19/418 , H04L5/00 , H04L12/28 , H04L29/06 , H04L29/08 , H04W4/70 , H04W8/22 , H04W28/02 , H04W40/24 , H04W56/00 , H04W72/00 , H04W72/04 , H04W74/08 , H04W80/02 , H04W84/18 , H04W92/02
Abstract: A method for transmitting unicast messages includes: obtaining, by a first node configured to communicate on a primary time-slotted channel hopping (TSCH) network, a media access control (MAC) address of a second node configured to communicate on the primary TSCH network; determining whether the first node and the second node are also configured to communicate on a secondary TSCH network; and in response to determining that the first node and the second node are also configured to communicate on the secondary TSCH network: offsetting transmission of a unicast message until a second portion of a timeslot for the primary TSCH network; synchronizing to a channel hopping sequence and frequency of the secondary TSCH network for the second node, and transmitting, by the first node, the unicast message to the second node on the secondary TSCH network during the second portion of the timeslot.
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公开(公告)号：US20220240345A1
公开(公告)日：2022-07-28
申请号：US17157123
申请日：2021-01-25
Applicant: Landis+Gyr Innovations, Inc.
Abstract: A system for switching between different communication modes by network nodes according to a time-division schedule to transmit and receive data packets is provided. For example, a transmitting node is configured to determine a scheduled communication mode of an upcoming time division according to a time-division schedule, and transmit a data packet in that time division when the scheduled communication mode matches a selected communication mode supported by both the transmitting node and a receiving node. The receiving node operates in a scheduled communication mode specified for a current time division by the time-division schedule and determines whether a header of the data packet is detected in the current time division. If not, the receiving node switches to a second scheduled communication mode specified for the subsequent time division by the time-division schedule to detect the header of the data packet in a subsequent time division.
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公开(公告)号：US11362701B2
公开(公告)日：2022-06-14
申请号：US17320846
申请日：2021-05-14
Applicant: Landis+Gyr Innovations, Inc.
Inventor： James Patrick Hanley , Christopher Scott Hett
IPC: H04B1/7143 , H04L27/26 , H04B1/7075 , H04W84/20
Abstract: A multi-radio border router for synchronizing communications of multiple border router radios is provided. For example, the border router includes a border router component connected to each of the plurality of border router radios. The border router component configured for selecting one of the plurality of border router radios as a master radio and assigning channel offset parameters for each of the plurality of border router radios. The master radio is configured for broadcasting synchronization beacons based on which the non-master radios synchronize their respective clocks with that of the master radio. After the synchronization, each of the border router radios communicates with endpoints associated therewith according to a channel hopping pattern modified by applying a channel offset determined based on the channel offset parameters assigned to the respective radio.
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公开(公告)号：US20210376879A1
公开(公告)日：2021-12-02
申请号：US17320846
申请日：2021-05-14
Applicant: Landis+Gyr Innovations, Inc.
Inventor： James Patrick Hanley , Christopher Scott Hett
IPC: H04B1/7143 , H04W84/20 , H04L27/26 , H04B1/7075
Abstract: A multi-radio border router for synchronizing communications of multiple border router radios is provided. For example, the border router includes a border router component connected to each of the plurality of border router radios. The border router component configured for selecting one of the plurality of border router radios as a master radio and assigning channel offset parameters for each of the plurality of border router radios. The master radio is configured for broadcasting synchronization beacons based on which the non-master radios synchronize their respective clocks with that of the master radio. After the synchronization, each of the border router radios communicates with endpoints associated therewith according to a channel hopping pattern modified by applying a channel offset determined based on the channel offset parameters assigned to the respective radio.
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